"Money is the reason we exist, everybody knows it, it's a fact".
When Kayla Diana Grambs, sister to Avery Kylie Grambs inherits 40 billion something dollars from an old Texas billionaire she's shocked.
Her life turned from living with her sister in a car and dealing with their other sister's abusive boyfriend, to living the American dream. All she must do to claim this inheritance is stay in the Hawthorne Mansion for a year. The catch? She doesn't know who this billionaire is, nor does she know why she was left the money or why he's left a game for her and her sister to play. She does however know that 40 billion dollars and a bunch of estates isn't the only thing she was left by this billionaire. She also has to live with his grandsons, one is a nomad cowboy, one a human rube Goldberg machine, one a ticking time bomb, and one over worked accountant who might be the devil himself: Grayson Davenport Hawthorne.
"Don't use your hot rich intellectual voice on me like that."
"You forget I'm not rich anymore."
"Don't worry, darling, I'm rich enough for the both of us."
IN WHICH Avery Grambs has an older sister named Carter and they inherit more than enough money for a hundred Grambs children.
Fem!OC x Grayson Hawthorne